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Gas purification system

Ursem, W.N.J. (author), Marijnissen, J.C.M. (author), Van de Vorle-Houben, E.J.J. (author)

The invention provides a gas purification system (10) for agricultural application comprising an elongated gas channel (100) having a rectangular cross-section, a channel height (h1), and a longitudinal axis (1); a gas transport unit (200); and a corona discharge system (300), comprising a counter electrode (340) within the elongated gas channel...

patent 2013

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Morphology of water electrosprays in the simple-jet mode

Agostinho, L.L.F. (author), Tamminga, G. (author), Yurteri, C.U. (author), Brouwer, S.P. (author), Fuchs, E.C. (author), Marijnissen, J.C.M. (author)

Experiments were conducted in order to study and characterize electrohydrodynamic atomization in the simple-jet mode for inviscid liquids. The operational window of this mode regarding the electric potential and liquid flow rate is presented. From the data it could be concluded that this mode can be divided by the characteristics of its breakup...

journal article 2012

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System for and method of delivering sprayed particles

Marijnissen, J.C.M. (author), Yurteri, C.U. (author), Roos, R.A. (author)

A particle delivery device for producing a spray of particles in an ambient gas at an ambient pressure includes a storage volume for a liquid substance; a nozzle having an inlet and an outlet, the nozzle inlet being coupled to the storage volume in fluid communication, and an electric supply for providing an electric field between the nozzle...

patent 2012

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Monodisperse water microdroplets generated by electrohydrodynamic atomization in the simple-jet mode

Agostinho, L.L.F. (author), Yurteri, C.U. (author), Fuchs, E.C. (author), Marijnissen, J.C.M. (author)

Experiments were conducted in order to investigate the influences of flow rate, applied voltage, and electric conductivity on droplet size and size distribution of water electrosprays in the simple-jet mode. The results show that the electric potential decreases significantly the relative standard deviation (RSD) of the spray size distribution,...

journal article 2012

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Ammonia removal from an aqueous solution and method for the production of a fertilizer material

Kelder, E.M. (author), Ursem, W.N.J. (author), Roos, R.A. (author), Marijnissen, J.C.M. (author)

The invention provides method for the removal of ammonia from air and converting the ammonia in a fertilizer material, comprising (a) contacting at least part of the air with an aqueous liquid, wherein the aqueous liquid is a solvent for ammonia, to provide an ammonia containing aqueous liquid,and(b) contacting the ammonia containing aqueous...

patent 2011

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Reverse movement and coalescence of water microdroplets in electrohydrodynamic atomization

Agostinho, L.L.F. (author), Fuchs, E.C. (author), Metz, S.J. (author), Yurteri, C.U. (author), Marijnissen, J.C.M. (author)

When a high voltage is applied to a liquid pumped through a needle, charged microdroplets can be formed, which are carried along the electric field lines. This phenomenon is called electrohydrodynamic atomization (EHDA), or simply electrospray. In this work we show that in the case of water, droplets may reverse their paths flying back toward...

journal article 2011

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Method for the removal of a gaseous fluid and arrangement therefore

Ursem, W.N.J. (author), Marijnissen, J.C.M. (author)

The invention provides a method for the removal of a gaseous fluid comprising (a) applying an electric field between a first electrode arranged to generate a corona discharge and a second electrode, comprising a haze-permeable electrically conductive sieve of a plurality of conductive strands, (b) atomizing a liquid to providing a liquid haze...

patent 2011

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Process and apparatus for producing coated particles

Van Ommen, J.R. (author), Ellis, N. (author), Yurteri, C. (author), Marijnissen, J.C.M. (author)

The invention is directed to a process and apparatus for preparing coated particles, in particular a process for preparing particles that are coated with small particles using electrospraying. The coated particles produced according to the present invention find use for instance as catalysts or as pharmaceuticals. According to the invention a...

patent 2010

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Electro spraying of titania for nitrogen oxide abatement

Ursem, W.N.J. (author), Marijnissen, J.C. (author), Roos, R.A. (author), Kelder, E.M. (author)

The invention provides a method for the production of a titania coating (80) on a surface (101) of an object (100) comprising electro spraying a titanium comprising liquid (15) to the surface (101) of the object (100) to provide a titanium comprising layer (85); and heating thetitanium comprising layer (85) thus obtained to provide the titania...

patent 2010

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Stability regime of pulse frequency for single event electrospraying

Stachewicz, U. (author), Yurteri, C.U. (author), Marijnissen, J.C.M. (author), Dijksman, J.F. (author)

This study demonstrates that the hydrodynamic phenomena taking place inside the capillary limits the frequency range of voltage pulses for stable single event electrospraying (SEE), when the meniscus/cone size is defined by the inner diameter of the nozzle. For the analysis of SEE, we used a one-dimensional model describing the displacement and...

journal article 2009

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Use of an electric field for the removal of droplets in a gaseous fluid

Ursem, W.N. (author), Marijnissen, J.C.M. (author), Roos, R.A. (author)

The invention provides the use, a method, and an apparatus to reduce and remove liquid droplets in air, such as fog, mist, or haze, although the invention in specific embodiments might also be used to reduce and remove liquid droplets from a spray or steam.The invention of the mist and/or air borne water or other liquid droplets catching and...

patent 2009

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Experiments on single event electrospraying

Stachewicz, U. (author), Dijksman, J.F. (author), Yurteri, C.U. (author), Marijnissen, J.C.M. (author)

In order to use electrospraying as an on demand deposition method, well defined and reproducible single electrospraying events have been studied. To generate a single electrospraying event, rectangular voltage pulses superimposed on a constant bias voltage were applied, and optimum settings of the bias dc voltage for starting such an event were...

journal article 2007

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Method for the removal of smut, fine dust and exhaust gas particles, particle catch arrangement for use in this method and use of the particle catch arrangement to generate a static electric field

Ursem, W.N.J. (author), Marijnissen, J.C. (author), Roos, R.A. (author)

This inventions provides a method for the removal of smut, fine dust and exhaust gas particles from polluted air comprising providing a particle catch arrangement with a charged surface, the particle catch arrangement being arranged to generate a static electric field, wherein the electric field is at least 0.2 kV/m. The invention further...

patent 2007

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Fluorescence preselection of bioaerosol for single-particle mass spectrometry

Stowers, M.A. (author), Van Wuijckhuijse, A.L. (author), Marijnissen, J.C.M. (author), Kientz, C.E. (author), Ciach, T. (author)

We have designed, constructed, and tested a system that preselects the biological fraction of airborne particles from the overall aerosol. The preselection is based on fluorescence emission excited by a continuous 266 nm laser beam. This beam is one of two cw beams used to measure the aerodynamic particle size of sampled particles. The intention...

journal article 2006

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Method and device for detecting and identifying bio-aerosol particles in the air

Stowers, M.A. (author), Wuijckhuijse, A.L. (author), Marijnissen, J.C. (author), Kientz, C.E. (author)

In a method for detecting and identifying bioaerosol particles in the air, the bioaerosol particles in a particle stream are selected in an ATOFMS (aerosol time-of-flight mass spectrometer) by means of fluorescence techniques, and only the selected bioaerosol particles are ionized, for instance on the basis of MALDI (matrix-assisted laser...

patent 2002

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Method of the dosed application of a liquid onto a surface

Moerman, R.J. (author), Frank, J. (author), Marijnissen, J.C. (author)

The invention relates to a method of the dosed application of a liquid onto to selected portion of the surface of a substrate (A) by means of spraying under the influence of an electric current. According to the invention the liquid is fed at a flow rate between 0.01 pl/s and 1 ml/s to a distal tip ( 3 ) of a capillary ( 1 ) having an inside...

patent 2000

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Method and apparatus for measuring particle size at low concentration

Marijnissen, J.C.M. (author), Willemse, A.W. (author), Roos, R.A. (author)

Described is an improved method for measuring the particle size of ultrasmall particles (111) which are suspended in a fluid. Laser light (121) is scattered by the particles, and the scattered light (122) is received by a light detector (131) which provides an electrical measuring signal (Sm) which is representative of the intensity of the...

patent 1997

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On the performance of an on-line time-of-flight mass spectrometer for aerosols

Weiss, M. (author), Verheijen, P.J.T. (author), Marijnissen, J.C.M. (author), Scarlett, B. (author)

journal article 1997

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The on-line chemical analysis of single particles using aerosol beams and time of flight mass spectrometry

Kievit, O. (author), Weiss, M. (author), Verheijen, P.J.T. (author), Marijnissen, J.C.M. (author), Scarlett, B. (author)

journal article 1996

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Some improvements on the particle beam generator

Kievit, O. (author), Marijnissen, J.C.M. (author), Verheijen, P.J.T. (author), Scarlett, B. (author)

journal article 1990